S1U2 PT Part 1

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Across
  1. 5. a body system that allows for movement by contracting.
  2. 8. the purpose of the nervous system is to gather and respond to ___________.
  3. 9. a body system that brings oxygen into our bodies and sends carbon dioxide out.
  4. 10. the normal range of body levels.
  5. 11. the ____________ system prevents species from becoming extinct.
  6. 12. the building blocks of life.
Down
  1. 1. when it gets cold, your body _______ to generate heat.
  2. 2. a body system that provides shape and support.
  3. 3. the ______ system fights off foreign invaders in the body.
  4. 4. every _____ is made up of different tissues.
  5. 6. processes that regulate body levels and maintain stability.
  6. 7. a body system that takes in food and absorbs nutrients.